Mada stickleaf - Mentzelia dispersa
(see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
Widely, though sporadically distributed across Montana. Usually not abundant where found.
Annual. Stems simple or branched, brittle, 5–35 cm, puberulent. Leaves 1–7 cm long; the blade lanceolate, sometimes shallowly lobed below to entire and sessile above. Flowers yellow with ovate bracts, diurnal; sepals ca. 2 mm long; petals 5, obovate, 3–5 mm long. Capsule cylindric, ca. 1 cm long; seeds minutely papillose under 20X with grooved angles, pendulous in 1 column (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
BC to ND south to CA, CO, SD and Mexico (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Sparsely vegetated, often sandy or gravelly soil of grasslands, steppe, open forest; valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
The following animal species have been reported as pollinators of this species or genera where their geographic ranges overlap: Bombus centralis
, Bombus fervidus
, Bombus huntii
, and Bombus pensylvanicus
(Thorp et al. 1983, Williams et al. 2014).
- Literature Cited AboveLegend: View Online Publication
- Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79.
- Williams, P., R. Thorp, L. Richardson, and S. Colla. 2014. Bumble Bees of North America. Princeton, NJ. Princeton University Press.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Martinka, R.R. 1970. Structural characteristics and ecological relationships of male blue grouse (Dendragapus obscurus (Say)) territories in southwestern Montana. Ph.D Dissertation. Bozeman, MT: Montana State University. 73 p.